The unique nonnegative square root of a nonnegative real number. For example, the principal square root of 9 is 3, although both -3 and 3 are square roots of 9.
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The radical symbol ( √ ) followed by a line above what's in the radical, designates positive square root.
There are no explicit symbols. The non-negative square toot is called the principal square root.
Definition of Square Root: The Square Root of a number 'X' is equal to 'A' when X=A*A By definition, the square root of a positive number has two answers, one negative and one positive, that have equal magnitudes. i.e. The square roots of 4 are 2 and -2. The Non-Negative Square Root is simply asking for the positive root.
it looks like a check mark. it is called the radical. it looks like this --> √
An integer is a whole number. Nonnegative mean not negative. A nonnegative integer is a whole number that is not a negative number. For example, 0, 1, 2, 3, 4, 5,....